1、看價(jia)格:一(yi)般來說,約2.5公(gong)(gong)斤(jin)花生(sheng)(sheng)(sheng)能榨出(chu)1公(gong)(gong)斤(jin)花生(sheng)(sheng)(sheng)油(you)和(he)1.5公(gong)(gong)斤(jin)油(you)餅,生(sheng)(sheng)(sheng)產出(chu)1公(gong)(gong)斤(jin)花生(sheng)(sheng)(sheng)油(you)的(de)最低(di)成本約14元。所以(yi)如果市(shi)場上賣的(de)花生(sheng)(sheng)(sheng)油(you)價(jia)格低(di)于最低(di)成本,那很(hen)有(you)可能是(shi)小作(zuo)坊生(sheng)(sheng)(sheng)產的(de)劣質油(you)。
2、看感觀:新鮮花(hua)(hua)生(sheng)(sheng)榨出來的(de)花(hua)(hua)生(sheng)(sheng)油(you)色(se)澤(ze)自然,金黃明亮(liang),聞起來具有花(hua)(hua)生(sheng)(sheng)油(you)的(de)天(tian)然濃郁香味(wei)。若用霉爛或過了夏天(tian)的(de)花(hua)(hua)生(sheng)(sheng)仁(ren)榨出來的(de)花(hua)(hua)生(sheng)(sheng)油(you)色(se)澤(ze)深暗。
3、聞氣味(wei):用右手指沾(zhan)油(you)少許,在左手心(xin)中猛搓幾下(xia),然后(hou)立(li)即嗅(xiu)其(qi)氣味(wei),有(you)濃(nong)郁(yu)純正花生(sheng)油(you)香(xiang)、無異(yi)常味(wei)道的,可(ke)認為(wei)是(shi)上品。而(er)摻入香(xiang)精的花生(sheng)油(you)開始有(you)微微的花生(sheng)香(xiang)味(wei),但是(shi)隨著再次揉搓,這種花生(sheng)香(xiang)味(wei)會越(yue)來越(yue)淡。
4、看(kan)凝固溫度(du):花生油(you)(you)的凝固點(dian)為0-3攝氏(shi)度(du),棕(zong)櫚(lv)油(you)(you)為27-30攝氏(shi)度(du),菜籽油(you)(you)是(shi)零(ling)下(xia)12-零(ling)下(xia)10攝氏(shi)度(du)。將(jiang)花生油(you)(you)放入冰箱(xiang)冷藏室10分(fen)鐘左(zuo)右,若(ruo)油(you)(you)發生凝固現(xian)(xian)象,即可(ke)(ke)初(chu)步認定(ding)摻有(you)棕(zong)櫚(lv)油(you)(you);放入冰箱(xiang)冷藏室約(yue)30分(fen)鐘左(zuo)右,若(ruo)油(you)(you)出現(xian)(xian)分(fen)層(ceng)及凝固現(xian)(xian)象,即可(ke)(ke)初(chu)步認定(ding)摻有(you)菜籽油(you)(you)。